.NET Tools

Did you know? The GC.KeepAlive() method in the .NET Framework is not used to prevent garbage collection of an object for the entire method scope, as you might think. Instead, it explicitly ensures that the object remains referenced at a specific point in the code after it's last used. It’s particula…

The new bug fixes for the 2024.3 release are available to download.  ReSharper 2024.3.5  This update comes with the following fixes: You can now run xUnit v3 tests under the .NET Framework in the Test Explorer without any issues. The Test Runner now handles large test suites seamle…

JetBrains Rider 2025.1 EAP 3 is out! You can now download this version from our website, update directly from within the IDE, use the free Toolbox App, or install it via snap packages for Ubuntu.  Here's what you can expect from this update: Proper support for Blazor WebAss…

If you work on large Unreal Engine projects in Rider, you've likely experienced the dreaded debug-step delay – hit F10 for Step Over, contemplate making coffee, then finally see the next line execute.  These delays occur in LLDB Debugger, the engine behind Rider's debugging capabilities for …

The new bug fixes for the 2024.3 release are available to download.  ReSharper 2024.3.4 We’ve fixed local privilege escalation in the ETW Host Service (CVE-2025-23385). We’ve fixed an issue where the foreach statement would fail to compile when iterating over a ref struct in an async …

We are excited to announce the launch of the Early Access Program (EAP) for the next major release of ReSharper and the .NET Tools! This initial EAP build is now available for download and offers a preview of the upcoming features and enhancements. Your feedback is crucial in helping us refine these…

The Early Access Program for Rider 2025.1 has just begun. This is your chance to preview the new features and enhancements we’ve been working on and share your feedback to help us shape the future of JetBrains Rider.  There are several ways for you to get your hands on the first preview buil…

In modern development, repositories are much more than just .NET solutions. From TypeScript end-to-end tests and Docker compose files to global.json and Playwright configs – your codebase contains numerous essential files that live outside of your C# projects.While these files are fully supported in…

Did you know? The Y2K bug, or "Millennium Bug," was a programming issue caused by storing years with only two digits (e.g., "1999" as "99") to save memory. As 2000 approached, systems risked interpreting "00" as 1900, leading to potential errors in calculations and data processing. Fears of disru…

The start of the new year is the perfect time to share our plans for JetBrains Rider 2025.1. These plans are subject to change based on available resources, evolving development priorities, and shifts in the .NET landscape. Some features and improvements may be postponed to a later release date. …

At JetBrains, we believe that the best way to improve our tools is by listening to the developers who use them. That's why we're reaching out to you! If you’re a developer using Rider, we want to hear about your experiences.